共查询到19条相似文献,搜索用时 317 毫秒
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双质量飞轮扭转减振器运动学仿真及力学分析 总被引:1,自引:0,他引:1
张定 《传动技术(上海)》2010,24(1):26-30
弹性元件是DMF的关键部件之一,本文的主要工作是分析在交变载荷下弹簧的应力和疲劳寿命。根据推导得出的参数和结论,建立了采用弧形螺旋弹簧结构的双质量飞轮的三维Pro/E实体模型,采用ADAMS translational spring-damper。对模型进行了静弹性特性分析,接着通过多体系统动力学的理论方法,运用大型动力学分析软件ADAMS建立了它的动态模型,并进行了仿真和优化。 相似文献
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讨论了双质量飞轮的结构及工作原理,分析了双质量飞轮降低变速箱输入轴扭转振动的理论基础;然后在Excite多体动力学软件中建立了带有双质量飞轮的发动机轴系仿真分析模型,并进行了仿真分析;最后,通过比较仿真结果与试验结果,发现双质量飞轮不仅能有效降低输入变速箱的转速波动,还能提高汽车舒适性,降低曲轴前段的扭转振动。 相似文献
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双质量飞轮是一种新型的扭振减振器,能够有效地降低车辆传动系统的扭转振动和噪声.当前国内对双质量飞轮的研究处于起步阶段,尚无成熟的性能检测方法与手段.通过对双质量飞轮减振原理分析,建立了双质量飞轮系统的扭振模型,提出性能检测试验台的设计方法.试验台具有适应性强,试验过程易控制,检测效率高等特点,其应用可有效降低双质量飞轮式扭振减振器实车检测的危险.通过台架试验结果,验证其可以有效检测出传动系统的扭振状况,为双质量飞轮减振效果的评估、双质量飞轮的设计、发动机-动力传动系统参数的匹配性设计提供参考. 相似文献
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Effect of single and multi-channel electrodes application on EDM fast hole drilling performance 总被引:1,自引:0,他引:1
Oguzhan Yilmaz M. Ali Okka 《The International Journal of Advanced Manufacturing Technology》2010,49(1-4):185-194
In diesel engines, it is inevitable that the torsional vibration is produced by the fluctuation of engine torque. Therefore, it is necessary to establish preventive measures to diminish the torsional vibration. A sleeve spring damper is one such measure to reduce the torsional vibration. In this study, the closed form equations to predict the spring constant of a sleeve spring and the dynamic characteristics of the torsional vibration damper are proposed to calculate stiffness of the damper, and verified their availability through the finite element analysis. Our theoretical values are in good agreement with results obtained from finite element analysis and experiments. Results obtained from the derived equation enable designers to be more efficient. 相似文献
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Beom Cheol Hwang Won Byong Bae Chul Kim 《Journal of Mechanical Science and Technology》2010,24(6):1301-1309
In diesel engines, engine torque fluctuation inevitably produces torsional vibration. A sleeve spring-type damper commonly
is used to reduce this vibration. In this paper, closed form equations to predict the spring constant of a sleeve spring and
the torsional characteristics of a torsional vibration damper are proposed for calculation of the stiffness of the damper.
The equations were verified through finite element analysis (FEA) and experiments. In addition, the stability of the sleeve
spring-type torsional vibration damper was verified in an analysis of the inner star and outer star (the core components of
the damper). A two-roll bending process, proposed in this paper, was determined to be the most suitable for manufacture of
the sleeve springs. A closed form equation to calculate the forming radius, taking account of the springback effect, was derived,
and a FEA method used to analyze the elasto-plastic problem was verified through an analysis of a 90° bending process. The
results of the analysis were in good agreement with the experiment. It is recommended that our proposed method, an advanced
technique that can significantly reduce production costs, replace the conventional forming process. 相似文献
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Shahram Shahriari Shahram Azadi Majid M. Moghaddam 《Journal of Mechanical Science and Technology》2010,24(6):1319-1327
In this paper, an accurate and simple model of a satellite with two flexible solar panels for three-dimensional dynamic studies
is proposed and compared with other models. In the proposed model, each solar panel is assumed to be rigid and attached to
the satellite body via a simple hinge, a torsional spring, and a torsional damper. Kane’s method is utilized to derive the
equations of motion. The model of flexible satellite with the assumption of Euler-Bernoulli beam for the solar panels, generally
used in the literature, has been introduced for comparison. A comprehensive model of flexible satellite, considering solar
panels as flexible and finite element panels, has been provided in ADAMS environment as a reference when comparing the two
mentioned models. The Euler-Bernoulli model does not appropriately simulate the three-dimensional motion of satellite. Conversely,
the hinged, rigid-panel model proposed in this paper provides suitable results in both two- and three-dimensional maneuvers. 相似文献